Leverage latest pylint features

It adds encoding in all open call and leverage f-strings.

Change-Id: I70ccd2bfcadae44929d5874f98fa3bf4ff644488
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/xtesting/utils/decorators.py b/xtesting/utils/decorators.py
index 2ce12fa7..2de0b816 100644
--- a/xtesting/utils/decorators.py
+++ b/xtesting/utils/decorators.py
@@ -30,12 +30,13 @@ def can_dump_request_to_file(method):
             except OSError as ex:
                 if ex.errno != errno.EEXIST:
                     raise
-            with open(parseresult.path, 'a') as dumpfile:
+            with open(parseresult.path, 'a', encoding='utf-8') as dumpfile:
                 headers = ""
                 for key in request.headers:
                     headers += key + " " + request.headers[key] + "\n"
-                message = "{} {}\n{}\n{}\n\n\n".format(
-                    request.method, request.url, headers, request.body)
+                message = (
+                    f"{request.method} {request.url}"
+                    f"\n{headers}\n{request.body}\n\n\n")
                 dumpfile.write(message)
         return mock.Mock()